Color

#ecf4fd

#ecf4fd
hex#ecf4fd
rgbrgb(236, 244, 253)
hslhsl(212, 81%, 96%)
oklchoklch(0.964 0.015 251.2)
Closest name: Cotton Ball (#f2f7fd)Relative luminance 0.8963

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#fdf5ed

#edfdfd · #ededfd

#fdedf4 · #f4fded

Split-complementary

Open in tool →

#fdeded · #fdfded

#fdedfd · #fdf5ed · #edfded

Contrast

#ecf4fd as textRatioAAAA largeAAAFix
Aaon white
1.11:1failfailfail
  • AA: use #1774de as the text (4.58:1)
  • AAA: use #1157a6 as the text (7.15:1)
  • AA: or shift the background to #6e6e6e (4.6:1)
  • AAA: or shift the background to #525252 (7.04:1)
Aaon black
18.93:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ecf4fd as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#ecf4fd reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ecf4fd
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #ecf4fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ecf4fd-9caac4-df564e-1f202d-e9f1f1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md